Charging a 2027 Rivian R1T Quad (22in UHP) at home in Montana

A 2027 Rivian R1T Quad (22in UHP) draws 47.3 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $6.52 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 59.3% cheaper per mile than gasoline in Montana — charging at home is much cheaper than gas here.

What a year of driving costs

Montana owners putting 15,000 annual miles on a 2027 Rivian R1T Quad (22in UHP) spend about $978 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,425 saved annually, at this mileage.

What one full charge costs

At Montana's rate, fully covering this 2027 Rivian R1T Quad (22in UHP)'s 338-mile EPA range costs about $22.04 (160 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Quad (22in UHP) in Montana ranks 11,524 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Quad (22in UHP) ranks 372 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1T Quad (22in UHP) at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few Montana electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Montana's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.